diff --git a/gnu/packages/ocaml.scm b/gnu/packages/ocaml.scm
index 1f47eab52e..d160c78d1b 100644
--- a/gnu/packages/ocaml.scm
+++ b/gnu/packages/ocaml.scm
@@ -2296,7 +2296,7 @@ for mapping files in memory.  This function is the same as the
 (define-public ocaml-lwt
   (package
     (name "ocaml-lwt")
-    (version "5.1.1")
+    (version "5.4.0")
     (source
       (origin
         (method git-fetch)
@@ -2305,7 +2305,7 @@ for mapping files in memory.  This function is the same as the
                (commit version)))
         (file-name (git-file-name name version))
         (sha256 (base32
-                 "1nl7rdnwfdhwcsm5zpay1nr9y5cbapd9x1qzily7zk9ab4v52m8g"))))
+                 "1ay1zgadnw19r9hl2awfjr22n37l7rzxd9v73pjbahavwm2ay65d"))))
     (build-system dune-build-system)
     (arguments
      `(#:package "lwt"))